Hi folks,
well, at the end I did it. In times of MIDI applications and software sequencers there is no need for a hardware sequencer module, I said. But I was wrong. I played around with a 960 of a friend, and then I knew that I want a sequencer.
As this should fit to my System 55 clone project, it had to be at least a kind of 960 clone. But looking at the original circuit diagrams I decided to reimplement the whole logic in a microcontroller based design. The 960 does not affect any sound creation or sound processing, just contains control functions and logic, so I decided to clone just the functions, not the interior.
Specification:
- All functions of the 960
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- 16 x 1 steps
- 16 x 1 steps
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- 24 x 1 steps
- 24 x 1 steps
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- MIDI capabilities
- MIDI capabilities
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- Ratchet functions
- Ratchet functions
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- ISP
And using a microcontroller design offered a whole bunch of additional features, which the original can’t deal with, as row selection without the need of a sequential switch, MIDI capabilities and one of my personal favorites, the wonderful ratchet effect.
And this is just the beginning of it. The T960 provides an ISP interface to upload any additional feature your weird fantasy can create, so the T960 is a huge playground for synthesizer control.
Here are some videos to show some (extra) functions:
T960 Demo 1: Ratcheting and MIDI Out
T960 Demo 2: 16 and 24 Step Mode
T960 Demo 3: Synchronization to incoming MIDI stream
Please find all technical description on the corresponding web site of my System 55 clone project
Hope you like it 
Any comments welcome…